Exponent

Algebra Level 1

Expand ( x + y ) 2 (x+y)^2 .

x 2 + 2 x y + y 2 x^2+2xy+y^2 4 x 2 + x y + y 2 4x^2+xy+y^2 2 x 2 + 2 x y + y 2 2x^2+2xy+y^2 4 x 2 + 4 x y + y 2 4x^2+4xy+y^2

Masrul Khan by Masrul Khan , 23, Canada

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3 solutions

Munem Shahriar
Jul 5, 2017

( x + y ) 2 (x + y)^2

Applying the formula ( a + b ) 2 = a 2 + 2 a b + b 2 (a + b)^2 = a^2 + 2ab + b^2

= x 2 + 2 x y + y 2 = x^2 + 2xy + y^2

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Mohammad Khaza
Jul 5, 2017

( x + y )^2= ( x + y) ( x+ y) 

              =x^2 +xy +xy +y^2

              = x^2 + 2xy + y^2
1 Helpful 0 Interesting 0 Brilliant 0 Confused
Peter Michael
Jun 12, 2017

Multiply it out

Notice the coefficients

One and one make two

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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